Comparative molecular field analysis of some pyridazinone-containing α1-Antagonists
摘要:
Diverse series of piperazines linked at N1 to 4, 5, or 6 positions of 3-(2H)-pyridazinone ring and at N4, by a suitable alkyl spacer, to some classical alpha(1)-adrenoceptor pharmacophore moieties, were tested in vitro for their alpha(1)-adrenoceptor antagonist activity. The modeling of their biological activity (pK(b)) by comparative molecular held analysis led to the development of a statistically significant partial least squares (PLS) model able to detect at 3-D level the main physicochemical interactions responsible for alpha(1)-adrenoceptor antagonist activity. (C) 1999 Published by Elsevier Science Ltd. All rights reserved.
Novel and highly selective postsynaptic α-adrenoreceptor antagonists: synthesis and structure-activity relationships of alkane-bridged [4-(phenoxyethyl)-1-piperazinyl]-3(2H)-pyridazinones
摘要:
The synthesis of selected 4-[4-(phenoxyethyl)-1-piperazinyl]-3(2H)-pyridazinones and alkane-bridged dimers of 4-, 5- and 6-[4-(phenoxyethyl)-1-piperazinyl]-3(2H)-pyridazinones is reported, The blocking activity of these compounds was determined on the pre- and postsynaptic a-adrenoreceptors of isolated rat vas deferens.
Novel and highly selective postsynaptic α-adrenoreceptor antagonists: synthesis and structure-activity relationships of alkane-bridged [4-(phenoxyethyl)-1-piperazinyl]-3(2H)-pyridazinones
The synthesis of selected 4-[4-(phenoxyethyl)-1-piperazinyl]-3(2H)-pyridazinones and alkane-bridged dimers of 4-, 5- and 6-[4-(phenoxyethyl)-1-piperazinyl]-3(2H)-pyridazinones is reported, The blocking activity of these compounds was determined on the pre- and postsynaptic a-adrenoreceptors of isolated rat vas deferens.
Comparative molecular field analysis of some pyridazinone-containing α1-Antagonists
Diverse series of piperazines linked at N1 to 4, 5, or 6 positions of 3-(2H)-pyridazinone ring and at N4, by a suitable alkyl spacer, to some classical alpha(1)-adrenoceptor pharmacophore moieties, were tested in vitro for their alpha(1)-adrenoceptor antagonist activity. The modeling of their biological activity (pK(b)) by comparative molecular held analysis led to the development of a statistically significant partial least squares (PLS) model able to detect at 3-D level the main physicochemical interactions responsible for alpha(1)-adrenoceptor antagonist activity. (C) 1999 Published by Elsevier Science Ltd. All rights reserved.